Not only Linux vm's.
Since I upgraded to v3.0, my Ubuntu Desktop vm has lost it. Problems I can confirm:
- Erratic X behavior with mouse integration. I click on anywhere on screen, but vm gets it as clicked somewhere on bottom right of desktop. Disabling mouse integration works -which, obviously isn't an optimal solution.
- Transient or permanent (i.e. requiring reboot) hangs. Does not really seem to be relevant to network activity.
Windows 7 vm is problematic as well. 64-bit version refuses to install -hangs on splashscreen even before installation begins. 32 bit version seems to work fine.
Worst of all, I had that Windows 7 problem while I was recording a screencast for a basic Virtualbox tutorial for an Intel sponsored project we're conducting. http://egitim.pclabs.com.tr
I got to revert back to v2.x for now.